For recipients of allogeneic hematopoietic stem cell transplant (HSCT), mycophenolate mofetil (MMF) plus tacrolimus combination is mostly used in reduced-intensity (RIC), and nonmyeloablative conditioning (NMAC) whereas methotrexate and tacrolimus combination is preferred in myeloablative conditioning (MAC). We present single institution outcomes in patients undergoing allogeneic HSCT with both MAC and NMAC/RIC regimen using MMF and tacrolimus for graft-versus-host disease (GVHD) prophylaxis. Data from all adult patients who underwent allogeneic HSCT from 2007 to 2017 was collected from Data Back to Centers web-based application of Center for International Blood and Marrow Transplant Research (CIBMTR). A total of 150 patients were included with the mean age of 46.9 years. For the patients who received MAC&nbsp;(n=109), the cumulative incidence of grade II-IV acute GVHD at day 100 was 37%, grade II-IV acute GVHD at one year was 51%, and chronic GVHD at one year was 38%. For the patients who received NMAC/RIC (n=41), the cumulative incidence of grade II-IV acute GVHD at day 100 was 31%, grade II-IV acute GVHD at one year was 28%, and chronic GVHD at one year was 36%. This institutional analysis shows that the combination of MMF and tacrolimus yields acceptable outcomes for the prevention of acute and chronic GVHD. https://www.selleckchem.com/products/TSU-68(SU6668).html Copyright © 2020, Hashmi et al.Myomatous Erythrocytosis Syndrome is defined as erythrocytosis, myomatous uterus, and the return of normal hematologic values following surgical resection.&nbsp;The exact role of erythropoietin in disease pathogenesis is unknown.&nbsp;In this study we report the case of a 49 year old premenopausal woman who was found to have an enlarged heterogeneous mass arising from the uterus concerning for malignancy.&nbsp;Her RBC count was 5.75 T/L, hemoglobin was 17.6 g/dL and hematocrit was 54.3%.&nbsp;Pre-operative erythropoietin levels were 24.6 mIU/mL and JAK2 mutation was not detected.&nbsp;She underwent Total Abdominal Hysterectomy and Bilateral Salpingo-Oophorectomy.&nbsp;The pathology was consistent with a uterine leiomyoma.&nbsp;Laboratory evaluation performed eight weeks after surgery showed a RBC count of 4.5 T/L, hemoglobin of 13.6 g/dL, hematocrit of 40.5%.&nbsp;Post-operative erythropoietin level was 5.4 mIU/mL. The tissue showed diffuse moderate to strong cytoplasmic immunopositive for Erythropoietin.&nbsp;Erythropoietin plays an important role in this condition, however the exact mechanism is still under investigation.&nbsp;The theory of erythropoietin secreting tumor autonomously without negative feedback&nbsp;is the most credible so far. However, further studies with use of blood erythropoietin level, tissue erythropoietin detection using immune-stain and new molecular biology techniques need to be done and compared to uterine myoma patients with no erythrocytosis. Usually, no further treatment is required following surgical removal. Copyright © 2020, Suresh et al.Myasthenic crisis is a life-threatening condition commonly associated with respiratory failure and may present in unusual ways. However, there is paucity in the literature about the cardiac manifestations of myasthenia gravis. We present a case of a 61-year-old male who presented to the emergency room with upper respiratory infection symptoms who soon thereafter suffered sudden cardiac arrest. He was found to have shortened PR interval pre and post arrest onelectrocardiogram (EKG). Only past medical history, discovered post cardiac arrest, was myastenia gravis. All other causes of cardiac arrest were ruled out, and it was deemed to be due to a manifestation of myastenia gravis. The patient was treated with intravenous steroids and plasmapheresis with resolution of shortened PR interval. It is hypothesized that striatial muscle antibodies may trigger inflammation in cardiac muscle and cause conduction abnormalities. In addition, anti-Kv1.4 antibodies have been associated with EKG abnormalities, including QT prolongation and T-wave inversion. To our knowledge, we are the first to report myasthenic crisis manifesting with isolated cardiac arrest with pulseless electrical activity and a shortened PR interval. Copyright © 2020, Andreev et al.Liver represents the most common site of metastasis in patients with advanced colorectal cancer (CRC). Cutaneous metastasis is uncommon and has been documented only in 3% of&nbsp;patients. Most cutaneous metastases demonstrate typical histological features of adenocarcinoma, such as glandular formation and mucin production. We present the case of a 66-year-old male with Crohn's disease (CD) and stage IV rectal signet ring cell carcinoma arising in his rectal stump who presented with a painful papular bilateral groin rash. Biopsy revealed metastatic signet ring cell carcinoma. Since cutaneous metastasis in patients with advanced CRC can be easily confused with infection, especially fungal infection, physicians should be vigilant of the possibility of cutaneous metastasis. Our literature review suggests hematogenous spread as the dissemination pathway of this histological subtype of rectal adenocarcinoma to the skin. We present the first case of cutaneous metastatic signet ring cell carcinoma from a rectal stump of a patient with CD. Copyright © 2020, Mandzhieva et al.Pulmonary artery sling is a rare cause of neonatal respiratory distress. Most patients with pulmonary artery sling present in early infancy with stridor and signs of respiratory distress. Diagnosis of pulmonary artery sling, like other vascular ring anomalies, can be made using various imaging modalities, and management encompasses urgent surgical repair as a definitive treatment. This is the first paper to report a successfully managed case of an early detected left pulmonary artery sling during the first week of life in a term male patient and to evaluate the diagnostic characteristics in alliance with it. CAse REports (CARE) guidelines were followed for reporting our case. In brief, a&nbsp;case of full-term baby boy was born by normal vaginal delivery and shortly after birth, the baby started to have respiratory distress not improving on O2. Chest X-ray revealed right upper lobe atelectasis which persisted despite mechanical ventilation and antibiotics. A thoracic CT scan&nbsp;showed developmental malformation of left main pulmonary artery, confirming the diagnosis of "left pulmonary artery sling.